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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The SI5335B-B03298-GM is a clock generator, PLLs, frequency synthesizer available in a 24-pin 5 mm x 5 mm Thin Quad Flat No-lead (TQFN) package. It is used for frequency plan designs and is extremely difficult for customers to match existing oscillators and timing designs to their frequency plans. It is beneficial for customers because it eliminates the need for complicated frequency plan matching.

Application Field

The SI5335B-B03298-GM is generally used when clock signals are needed for communication, data converters, and radio frequency applications. It offers low jitter, low power operation, a wide operating range from 30 to 400 MHz, and ease of programming. It supports output frequencies from 4 kHz to 400 MHz. Its low jitter performance makes it well suited for RF applications.

Working Principle

The SI5335B-B03298-GM utilizes a phase-locked loop (PLL) to generate an output frequency that is proportional to an input reference frequency. It achieves low jitter performance by utilizing a low noise, low drift voltage controlled oscillator (VCO). The device works by using the reference frequency to set the frequency of the VCO, which is then multiplied by a factor of up to 2,000 to generate the output frequency. The output frequency can then be divided by a factor of up to 2,000 to generate the desired output frequency. The device also offers programmable output sync, power-down modes, and gain control features. Additionally, it offers programmable output format options such as TTL, LVPECL, HCSL, and LVDS.

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